If you were in a spaceship and fired a cannonball into space, how much force would
have to be exerted on the ball to keep it moving after it has left the spaceship?

18. use the activity series to predict whether the following synthesis reaction will occur. write the chemical equations for the reaction if it's predicted to occur. (s) + o2(g) -> *note: it is possible.*

Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?

What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2